20 Ton Machine Screw ComDRIVEs

CD820, CD2420, DCD820, DCD2420

Joyce 20-ton ComDRIVE screw jacks lift and precisely position loads. Upright or inverted, these ComDRIVEs operate at full capacity in tension or compression and are available in Translating, Keyed for non-rotation, KFTN, and Double clevis designs. Travel speeds range from 3.52 to 27.76 inches per minute.

  • 2 1/2” diameter lifting screw, 20 ton thrust capacity
  • Available with a variety of ratios and leads
  • ComDRIVEs can power an entire jacking systems
  • Standard 230/460 Volt, 3-phase, 60-hertz motor included
  • Joyce/Dayton can customize to meet customer requirements

Jack Material Notes:

  • Ductile iron jack housing
  • Lifting screw, cold drawn steel (CDS)
  • Input shaft (worm), CDS
  • Aluminum bronze traveling nut (KFTN)

Motor Notes:

  • 230/460 Volt, 3-phase, 60-hertz motor is standard

Sample Part Number:

Click on the part number to reveal additional informaton about jack designs and shaft codes.

Model Number

2-Ton 3-Ton 5-Ton 10-Ton 15-Ton 20-Ton 25-Ton 30-Ton
CD62
CD122
CD242
CD63
CD123
CD243
CD65
CD125
CD245
CD810
CD2410
CD815
CD2415
CD820
CD2420
CD1125
CD3225
CD1130
CD3230
DCD62*
DCD122*
DCD242*
DCD63*
DCD123*
DCD243*
DCD65*
DCD125*
DCD245*
DCD810*
DCD2410*
DCD815*
DCD2415*
DCD820*
DCD2420*
DCD1125*
DCD3225*
DCD1130*
DCD3230*

Important Note: *Not self-locking, may lower under load. Brake motors or external locking systems are recommended.
DCD: Double lead screw.
(For 25:1 ratio, contact Joyce/Dayton.)

Jack Configuration

U=Upright

I=Inverted

End Conditions

1=T1
(plain end)

2=T2
(load pad)

3=T3
(threaded end)

4=T4
(male clevis)

Jack Designs

S=Translating

K=Keyed for Non Rotation

N=Traveling Nut

D=Double Clevis

R=KFTN Trunnion*
T=Trunnion*

* Standard trunnion mounts available on 2-ton through 20-ton jacks.

ComDRIVE® Rise

Rise is travel expressed in inches and not the actual screw length. When companion jacks are ordered with the ComDRIVE®, their screws are lengthened to match the ComDRIVE®.

Left Side Shaft Code

Right Side Shaft Code

XXXX=Remove
STDX=Standard

XXXX=Remove
STDX=Standard

 


Optional Shaft Codes

Screw Stops and Boots

Extending and retracting screw stops are standard on ComDRIVEs. When boots are added to ComDRIVEs, the closed height of the unit may be increased.

Mechanical Counters

CNT0=0.001" Increments
Note: Contact Joyce/Dayton for availability and options.

Geared Potentiometers

POTA=0-10V (IP65)
POTB=4-20MA (IP65)
POTC=0-10V w/2 switches*
POTD=4-20MA w/2 switches*
*Optional IP65 rating available

Encoders and Electronic Limit Switches

ENCX=Encoder
ELS2=2 Position Electronic Switch
ELS4=4 Position Electronic Switch
ELS6=6 Position Electronic Switch

Motor for Systems and Direct Drives

  • All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available. Specify the appropriate motor size from the chart on the right.
  • Refer to the "Additional Options" chart on the preceding page as needed.
  • Brake motors (M2) are recommended for jacks that are not self-locking, and jacks with double lead screws.
  • If the motor frequency will be varied to provide a "soft" start an inverter duty motor may be required.

ComDRIVE Reducers

Ordering Example:
P2 (Mounting Positions) A (Ratio) C (Motor code from chart above)

Mounting Positions
Code P1 P2 P3 P4
Left Side
Shaft Options
Right Side
Shaft Options
Ratio
5:1
Code A
7.5:1
Code B
10:1
Code C
Motors
Size Code
1/4 HP K
1/3 HP A
1/2 HP B
3/4 HP C
1 HP D
1-1/2 HP E
2 HP F
3 HP L
5 HP G
7-1/2 HP H
10 HP I
15 HP J

All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available including international voltages, and single phase AC. Specify the appropriate motor size from the chart above. Refer to the “Additional Options” chart on the preceding page as needed. Brake motors are required for ball screw ComDRIVEs®. Contact Joyce/Dayton for other options.

Mechanical Limit Switches

Ordering Example:
LA (Models) 1(Number of DPDT Switches) 3(Available Positions)

Model Code   Available Positions
LS7-402 LI

Number of DPDT Switches

NOTE: Will always be 0 for LS7 models

  1 2* 3 4 5 6* 7 8
LS8-402 LA Left Side Shaft Options
LS8-504 LB
LS9-502 LC
LS9-503 LD Right Side Shaft Options
LS9-504 LE
LS9-505 LF
LS9-506 LG
  • 2, 3, 5, 10, 15, and 20 ton jacks are available with positions #1, #3, and #5
  • 25, 30, 35, 50, 75, 100, and 150 ton jacks are available with positions #1, #4, #7, and #8

These positions are not standard. Contact Joyce/Dayton with your requirements.

LS9-507 LH

Additional Options

  • X=Standard Jack, no additional options
  • S=Additional Specification Required (comment as necessary)

Anti-Backlash

  • A=Split Nut
  • A90=A90 Design
  • A95=A95 Design

Protective Boots

  • B=Protective Boot
  • D=Dual Protective Boot

Finishes

  • F1=Do Not Paint
  • F2=Epoxy Paint
  • F3=Outdoor Paint Process

Motor Options

  • M1=Less Motor
  • M2=Brake Motor
  • M3=Single Phase Motor (120VAC)
  • M4=50Hz Motor

Grease/Seals

  • H1=High Temperature Operation
  • H2=Food Grade

Screw Stops

  • ST0=Extending
  • ST1=Retracting
  • ST2=Both
  • Specify as many options as needed
20 Ton Model NumberCD820CD2420DCD820DCD2420
Reducer Ratio 5 10 5 10 5 10 5 10
Travel Speed IPM 20.81 10.56 6.94 3.52 27.76 14.09 9.25 4.69
Lifting 
Capacity, 
Lbs.
1 HP 2,715 5,570 6,520 12,920 2,265 4,645 5,435 10,765
1 1/2 HP 4,475   10,745   3,730   8,960  
2 HP 6,235   14,965   5,195   12,475  
3 HP 9,880 18,785 23,715 40,000 8,235 15,660 19,770 36,300
5 HP 17,000   40,000   14,175   34,020  

 

Important Note: DCD models may lower under load. Brake motors or external locking systems are recommended.

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